Cultivation of the genus Pelargonium under glass

This paper describes the cultivation under glass of the genus Pelargonium. The difference between Pelargonium and the other four genera in the family Geraniaceae is noted and a list of species grown at the Royal Botanic Garden Edinburgh is provided. The use of the genus in the display glasshouses at this botanic garden is described followed by notes on cultivation including watering, nutrition, pruning, pest control, and propagation. The use of pelargoniums in the commercial and medicinal industries follows